To me a bookshelf book is one that you want to keep close at hand - one that you can easily go back to for reference. This is one of those books.
I was a bit leery about buying a book I thought would be a pseudo-autobiography, after all, how interesting could it be to read about the presentations of one man. It was fantastic. It was both an incredibly easy read as well as littered with inspiration. I often jot notes, circle important items, underline things I want to further research when reading and this book is junked up with my hand writing. I would highly recommend it to anyone who wants to amp up their presentations. But I also think it's a great resource for anyone in communications. Pick it up & leave space on your bookshelf.